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Added @AnnotationDriven annotation for Spring Java Config
This annotation removes the need to "manually" configure the annotation postprocessor beans when using Java Config. Issue #AXON-240 Fixed
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core/src/main/java/org/axonframework/contextsupport/spring/AnnotationDriven.java
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| /* | ||
| * Copyright (c) 2010-2014. Axon Framework | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
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| package org.axonframework.contextsupport.spring; | ||
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| import org.springframework.context.annotation.Import; | ||
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| import java.lang.annotation.Documented; | ||
| import java.lang.annotation.ElementType; | ||
| import java.lang.annotation.Retention; | ||
| import java.lang.annotation.RetentionPolicy; | ||
| import java.lang.annotation.Target; | ||
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| /** | ||
| * Annotation for {@link org.springframework.context.annotation.Configuration @Configuration} that will automatically | ||
| * subscribe {@link org.axonframework.commandhandling.annotation.CommandHandler @CommandHandler} and {@link | ||
| * org.axonframework.eventhandling.annotation.EventHandler @EventHandler} annotated beans with the CommandBus and | ||
| * EventBus, respectively. | ||
| * <p/> | ||
| * If a context contains multiple EventBus or CommandBus implementations, you must indicate the isntance to use as | ||
| * a property on this annotation. | ||
| * | ||
| * @author Allard Buijze | ||
| * @since 2.3 | ||
| */ | ||
| @Target(ElementType.TYPE) | ||
| @Retention(RetentionPolicy.RUNTIME) | ||
| @Documented | ||
| @Import(AnnotationDrivenConfiguration.class) | ||
| public @interface AnnotationDriven { | ||
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| /** | ||
| * The bean name of the Event Bus to register {@link | ||
| * org.axonframework.eventhandling.annotation.EventHandler @EventHandler} annotated beans with. | ||
| */ | ||
| String eventBus() default ""; | ||
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| /** | ||
| * The bean name of the Command Bus to register {@link | ||
| * org.axonframework.commandhandling.annotation.CommandHandler @CommandHandler} annotated beans with. | ||
| */ | ||
| String commandBus() default ""; | ||
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| /** | ||
| * Whether to unsubscribe beans on shutdown. Default to <code>false</code>. Setting this to <code>true</code> will | ||
| * explicitly unsubscribe beans from the Event- and CommandBus when shutting down the application context. | ||
| */ | ||
| boolean unsubscribeOnShutdown() default false; | ||
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| /** | ||
| * The phase in the application context lifecycle in which to subscribe (and possibly unsubscribe) the handlers | ||
| * with the CommandBus and EventBus. | ||
| */ | ||
| int phase() default 0; | ||
| } |
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.../src/main/java/org/axonframework/contextsupport/spring/AnnotationDrivenConfiguration.java
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| @@ -0,0 +1,67 @@ | ||
| /* | ||
| * Copyright (c) 2010-2014. Axon Framework | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
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| package org.axonframework.contextsupport.spring; | ||
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| import org.springframework.beans.factory.support.BeanDefinitionRegistry; | ||
| import org.springframework.context.annotation.ImportBeanDefinitionRegistrar; | ||
| import org.springframework.core.type.AnnotationMetadata; | ||
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| import java.util.Map; | ||
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| /** | ||
| * Spring @Configuration related class that adds Axon Annotation PostProcessors to the BeanDefinitionRegistry. | ||
| * | ||
| * @author Allard Buijze | ||
| * @see org.axonframework.contextsupport.spring.AnnotationDriven | ||
| * @since 2.3 | ||
| */ | ||
| public class AnnotationDrivenConfiguration implements ImportBeanDefinitionRegistrar { | ||
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| private static final String ANNOTATION_TYPE = AnnotationDriven.class.getName(); | ||
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| @Override | ||
| public void registerBeanDefinitions(AnnotationMetadata importingClassMetadata, BeanDefinitionRegistry registry) { | ||
| final AnnotationConfigurationBeanDefinitionParser parser = new AnnotationConfigurationBeanDefinitionParser(); | ||
| Map<String, Object> attributes = importingClassMetadata.getAnnotationAttributes(ANNOTATION_TYPE); | ||
| parser.registerAnnotationCommandHandlerBeanPostProcessor(getCommandBus(attributes), getPhase(attributes), | ||
| getUnsubscribeOnShutdown(attributes), | ||
| registry); | ||
| parser.registerAnnotationEventListenerBeanPostProcessor(getEventBus(attributes), getPhase(attributes), | ||
| getUnsubscribeOnShutdown(attributes), | ||
| registry); | ||
| } | ||
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| private String getEventBus(Map<String, Object> attributes) { | ||
| final Object eventBus = attributes.get("eventBus"); | ||
| return eventBus == null ? null : eventBus.toString(); | ||
| } | ||
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| private String getCommandBus(Map<String, Object> attributes) { | ||
| final Object commandBus = attributes.get("commandBus"); | ||
| return commandBus == null ? null : commandBus.toString(); | ||
| } | ||
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| private String getUnsubscribeOnShutdown(Map<String, Object> attributes) { | ||
| final Boolean unsubscribeOnShutdown = (Boolean) attributes.get("unsubscribeOnShutdown"); | ||
| return unsubscribeOnShutdown == null ? null : Boolean.toString(unsubscribeOnShutdown); | ||
| } | ||
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| private String getPhase(Map<String, Object> attributes) { | ||
| final Integer phase = (Integer) attributes.get("phase"); | ||
| return phase == null ? null : Integer.toString(phase); | ||
| } | ||
| } |
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